The team that arrived at the airport with eminent lawyer Ram Jethmalani, a BJP MP, faced protests from members of bar council and Akhil Bharatiya Vidyarthi Parishad, who shouted "European Union go back" and alleged the 27-member body of influencing judicial process in India.
"EU representatives come as observers but try to influence judicial process in India. We will not tolerate this," a protester said.
Jethmalani refused to comment on the protests.
The European Union delegation include representatives of Delhi based diplomatic missions from Belgium, France, Germany, Hungary, Sweden and the UK.
The hearing is scheduled to take place at the Chhattisgarh high court in Bilaspur on Monday. The bail plea comes exactly after one month of Binayak`s conviction for sedition, and sentencing to life.
Civil rights activists have been demanding his release.